class Hash {
     #data;

     constructor(DATA, METHOD) {
          this.#data = DATA;
          this.algorithm = (METHOD) ? METHOD : "SHA-512";
          this.arrayBuffer = crypto.subtle.digest(this.algorithm, (new TextEncoder()).encode(DATA))
     };

     /* 
     Represent the hash in another format. 

     @param {string} TYPE the output format
     @return {object} the converted hash
     */
     async convert(TYPE) {
          if (TYPE) {
               switch (TYPE) {
                    case `Uint8Array`:
                         this[TYPE] = new Uint8Array(await this.arrayBuffer);
                         break;
                    case `Array`: 
                         this[TYPE] = Array.from(new Uint8Array(await this.arrayBuffer));
                         break;
                    case `Number`: 
                         this[TYPE] = parseInt((Array.from(new Uint8Array(await this.arrayBuffer))).join());
                         break;
                    case `String`: 
                         this[TYPE] = Array.from(new Uint8Array(await this.arrayBuffer)).join(``);
               };
     
               return(this[TYPE])
          }
     }
}


module.exports = Hash;